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# -*- coding: utf-8 -*-
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
# MA 02110-1301, USA.
#
# Author: Mauro Soria
import email
from io import StringIO
from lib.utils.fmt import lowercase
class HeadersParser(object):
def __init__(self, headers):
self.headers = {}
self.raw = None
if isinstance(headers, str):
self.headers = self.raw_to_headers(headers)
self.raw = headers
elif isinstance(headers, (dict, list)):
self.raw = self.headers_to_raw(headers)
self.headers = self.raw_to_headers(self.raw)
self.lower_headers = lowercase(self.headers)
@staticmethod
def raw_to_headers(raw):
if not raw:
return {}
return dict(
email.message_from_file(StringIO(raw))
)
@staticmethod
def headers_to_raw(headers):
if not headers:
return
if isinstance(headers, dict):
return "\r\n".join(
"{0}: {1}".format(key, value) for key, value in headers.items()
)
elif isinstance(headers, list):
return "\r\n".join(headers)
else:
return
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